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Patent relating to methods and devices for electromagnetically tuning acoustic media.
Physical Description
24 p. : ill.
Notes
Abstract: An acoustic material can be electromagnetically tuned to produce alterations in its acoustical properties without physical contact. The acoustic material should contain a periodic structure and a medium that has acousto-elastical properties that can be altered through the application of electromagnetic radiation. Changes in volumetric properties such as density result in changes to the velocity at which sound passes through the material. The acoustic material can be a phononic crystal that undergoes a change in its acoustic bandgap after being subjected to electromagnetic radiation. This electromagnetic tuning ability results in the ability to change the acoustic properties of various phononic devices without physical contact.
Prior Publication Data: US 2013/0112496 A1, May 9, 2013.
Related U.S. Application Data: Provisional application number 61/481520, filed on May 2, 2011.
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Neogi, Arup & Walker, Ezekiel.Methods and Devices for Electromagnetically Tuning Acoustic Media,
patent,
June 10, 2014;
[Washington, D.C.].
(https://digital.library.unt.edu/ark:/67531/metadc307081/:
accessed June 7, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT College of Arts and Sciences.